what is the meaning of this code?

for i = 0:3
    for j = 0:3
        temp = imread(strcat('output/img', num2str(4*i + j), '.tif'));
        if j == 0            
            img = temp;
        else
            img = [img temp];
        end
    end
    if i == 0
        out = img;
    else
        out = [out; img];
    end
end
imwrite(out, '1-merged_image.tif');

[Stephen23]

"what is the meaning of this code?"

Nothing.

That code has no meaning.

Because its author did not bother to write any code comments or explanations, we have no idea what it is intended to do, or whether it is even suitable for doing it. Code without a specification is meaningless.

Answer 1

[Fangjun Jiang]

You've been asking the same question many times yet none of the answers seem to answer your question. I suggest you run "demo" in MATLAB and then select "MATLAB" to "Getting started with MATLAB".

Answer 2

[Walter Roberson]

it reads in output/img0.tif through output/img15.tif and arranges them as one larger image 4 across at aa time.